Signal-bell



(No Model! G. W. EDDY.

SIGNAL BELL.

No. 361,751. Patented Apr. 26, 1887.

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NITED STATES PATENT OFFICE.

I I GEORGE V. EDDY, OF NEW? LONDON, ASSIGNOR TO THE RUSSELL & ERVVIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT.

SIGNAL-BELL.

$PEC'IPICATION forming part of Letters Patent No. 361,751, dated April 26, 1887.

' Application filed February 5, 1887. Serial No. 220,667. (No model.) A

To aZZ whom it may concern.-

Be it known that I, GEORGE W. EDDY, a citizen of the United States, residing at New London, in the county of New London and State of Connecticut, have invented certain new and useful Improvei'nents in Signal-Bells, of which the following is a specification.

My invention relates to improvements in signahbells of the class having a vibratory hammer operated by an escapement-wheel; and the objects of my invention are to simplify the construction and to multiply the number of strokes of the hammer.

In the accompanying drawings, Figure 1 is a front elevation of my bell-ringing mechan ism with the bell removed; and Fig. 2 isa vertical section of my bell, partly in elevation, the plane of section being indicated by the line a: a", Fig. 1.

The bell A and the main portion of the bell stand or frame 13 may be of any ordinary construction. In proper bearings within this frame I pivot a shaft, a, upon which there is rigidly mounted an escapement-wheel, b. I also provide said shaft with a crank-arm, c, to which I secure a suitable spring-as, for instance, the spiral spring Zfor pulling said crank-arm and the shaft in one direction. The shaft should be provided with some suitable stop to limit the extent of its oscillating move-' ment, said stop being formed in the present instance by the crank-arm 0 coming in contact with the plate f of the frame at the sides of the opening within which the shaft to is mounted. Thus it will be seen that the escapenient-wheel moves only a fraction of a revolution, and therefore a partial wheel or segment of a wheel is sufficient to constitute the escapement-wheel in the sense of that term as herein used.

Pivoted within the frame, near the escapement-wheel, is the hammer-shaft 9, bearing the hammer hand two pallets, k k, which engage the teeth of the escapement-wheel, whereby a movement of the escapement-wheel in either direction (its teeth being beveled alike on both sides) imparts a vibratory move ment to the hammer. The escapement-wheel b is also provided with a crank-pin, m, to

which is connected the push-rod 0, said rod terminating in any suitable button or handle-as, for instance, the knob 1), Fig. 2 at any convenient point. The crank-pin m is so placedupon the escapement-wheel as to be a little one side of the center when the wheel is at rest. By pressing upon the push-rod the escapement-wheel is moved a partial revolution, causing the hammer to vibrate, and upon releasing the pushrod the spring at returns the parts to their normal position,and also imparts avibratory'movement to the hammer.

By my invention the parts are simplified and reduced to the smallest possible number, and the hammer vibrates to sound the bell by a series of rapid strokes when the push-rod and escapementwhe'el are moving in either direction.

I am aware that prior patents show and de scribe signal-bells in which the hammer is given a series of rapid strokes by means of an escapement-wheel but these are generally operated by a rack and pinion connected with the escapement-wheel by means of a ratchet and paw], so that said wheel has a forward movement only. Such devices for ringing sign nal-bells are hereby disclaimed.

Itis obvious that my device may be applied to a call-bellor other signal-bells, as well as to a bell which is specially adapted for use in connection with a door.

I claim as my invention 1. In a signal-bell, the combination, substantially as hereinbefore set forth, of the reciprocating operating rod, the escapementwheel connected to said rod, the vibratory hammer and its operating-pallets engaging the teeth of said escapement-wheel, and a spring connected with said escapement-wheel and operating-rod to move them both, whereby the hammer is operated in a series of rapid strokes by the operating-rod when it is moved in one direction, and also operated in like manner when said escapement-wheel and operating.

rod are moved in the reverse direction by means of said spring.

2. In a signal-be1l,the combination of thehammer and escapement-wheel with a crank-pin connected with said escapement-wheel, and a reciprocating operating-rod connected to said 1 and a spring for moving said wheel in the recrank-pin, substantially as described, and ,for verse direction, substantially as described, and [O the purpose specified. f h for the purpose specified.

3. Inasi nal-bell thecombinationo t e am- T mer and e gc-apement-wheel with a crank-pin GEORGE W EDDY connected with said Wheel, a reciprocating op- Witnesses: erating-rcd connected to said crank for mov- FREDERICK B. HUNGERFORD, ing said escapement-wheel in one direction, JAMES SHEPARD. 

